~ruther/guix-local

fb2b0f5c87321f5aab0dc13130ef92a76040fbe3 — Leo Famulari 10 years ago bbb5d8a
gnu: gd: Fix-CVE-2016-3074.

* gnu/packages/patches/gd-CVE-2016-3074.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/gd.scm (gd)[source]: Use it.
3 files changed, 40 insertions(+), 1 deletions(-)

M gnu/local.mk
M gnu/packages/gd.scm
A gnu/packages/patches/gd-CVE-2016-3074.patch
M gnu/local.mk => gnu/local.mk +1 -0
@@ 494,6 494,7 @@ dist_patch_DATA =						\
  gnu/packages/patches/gcc-cross-environment-variables.patch	\
  gnu/packages/patches/gcc-libvtv-runpath.patch			\
  gnu/packages/patches/gcc-5.0-libvtv-runpath.patch		\
  gnu/packages/patches/gd-CVE-2016-3074.patch			\
  gnu/packages/patches/geoclue-config.patch			\
  gnu/packages/patches/ghostscript-CVE-2015-3228.patch		\
  gnu/packages/patches/ghostscript-runpath.patch		\

M gnu/packages/gd.scm => gnu/packages/gd.scm +3 -1
@@ 2,6 2,7 @@
;;; Copyright © 2013, 2016 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2015 Mark H Weaver <mhw@netris.org>
;;; Copyright © 2015 Eric Bavier <bavier@member.fsf.org>
;;; Copyright © 2016 Leo Famulari <leo@famulari.name>
;;;
;;; This file is part of GNU Guix.
;;;


@@ 48,7 49,8 @@
                   "libgd-" version ".tar.xz"))
             (sha256
              (base32
               "11djy9flzxczphigqgp7fbbblbq35gqwwhn9xfcckawlapa1xnls"))))
               "11djy9flzxczphigqgp7fbbblbq35gqwwhn9xfcckawlapa1xnls"))
             (patches (search-patches "gd-CVE-2016-3074.patch"))))
    (build-system gnu-build-system)
    (native-inputs
     `(("pkg-config" ,pkg-config)))

A gnu/packages/patches/gd-CVE-2016-3074.patch => gnu/packages/patches/gd-CVE-2016-3074.patch +36 -0
@@ 0,0 1,36 @@
Adapted from upstream commit 2bb97f407c1145c850416a3bfbcc8cf124e68a19
(gd2: handle corrupt images better (CVE-2016-3074)).

This patch omits the upstream changes to '.gitignore', and the test
added in files 'tests/Makefile.am', 'tests/gd2/gd2_read_corrupt.c', and
'tests/gd2/invalid_neg_size.gd2'.

We omit the test because its input data,
'tests/gd2/invalid_neg_size.gd2', is provided as a binary Git diff,
which is not supported by `patch`.

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3074
https://github.com/libgd/libgd/commit/2bb97f407c1145c850416a3bfbcc8cf124e68a19
---
 .gitignore                     |   1 +
 src/gd_gd2.c                   |   2 ++
 tests/Makefile.am              |   3 ++-
 tests/gd2/gd2_read_corrupt.c   |  25 +++++++++++++++++++++++++
 tests/gd2/invalid_neg_size.gd2 | Bin 0 -> 1676 bytes
 5 files changed, 30 insertions(+), 1 deletion(-)
 create mode 100644 tests/gd2/gd2_read_corrupt.c
 create mode 100644 tests/gd2/invalid_neg_size.gd2

diff --git a/src/gd_gd2.c b/src/gd_gd2.c
index 6f28461..a50b33d 100644
--- a/src/gd_gd2.c
+++ b/src/gd_gd2.c
@@ -165,6 +165,8 @@ _gd2GetHeader (gdIOCtxPtr in, int *sx, int *sy,
 			if (gdGetInt (&cidx[i].size, in) != 1) {
 				goto fail2;
 			};
+			if (cidx[i].offset < 0 || cidx[i].size < 0)
+				goto fail2;
 		};
 		*chunkIdx = cidx;
 	};